Stress Analysis |

Category Archives: Stress Analysis

Stress Analysis

Stress–strain analysis (or just stress analysis, for short) is an engineering discipline covering methods to determine the stresses and strains in materials and structures subjected to forces or loads.

1.3. Relationships between elastic constants

Posted on January 10, 2014 by Aerospace Engineering

1 . Analysis of the Orthotropic Lamina 1.1. Introduction 1.2. Hooke’s Law 1.3. Relationships between elastic constants and Matrix of Elasticity … Continue reading →

Posted in Classical theory of Laminates | Tagged between, CONSTANTS, elastic, elasticity, Lamina, Matrix, Orthotropic, Relationships | Leave a comment

1.2. Hooke’s Law

Posted on January 10, 2014 by Aerospace Engineering

1 . Analysis of the Orthotropic Lamina 1.1. Introduction 1.2. Hooke’s Law 1.3. Relationships between elastic constants and Matrix of Elasticity … Continue reading →

Posted in Classical theory of Laminates | Tagged Composite, CONSTANTS, elasticity | Leave a comment

1.1. Introduction, Orthotropic Lamina

Posted on December 28, 2013 by Aerospace Engineering

1 . Analysis of the Orthotropic Lamina 1.1. Introduction 1.2. Hooke’s Law 1.3. Relationships between elastic constants and Matrix of Elasticity … Continue reading →

Posted in Classical theory of Laminates | Tagged analysis, anisotropic, Composite, fibre, fibrous, isotropic, Lamina, laminate, layer, layers, material, materials, of, Orthotropic, Quasi-isotropic, The | Leave a comment

Composite Analysis Tool

Posted on December 25, 2013 by Aerospace Engineering

Composite Laminate Analysis Excel file that allows to calculate the stress and strains in a Laminate composite plates. The file … Continue reading →

Posted in Composite material | Tagged analysis, Composite, excel, laminate, tool | Comments Off

Non Linear Analysis SOL 106

Posted on December 4, 2013 by Aerospace Engineering

In the most of cases the nonlinear effects in structures occur due to nonlinear material behavior and large deformations. … Continue reading →

Posted in FEM - Analysis | Tagged 106, analysis, AUTO, Card, CONV, EPSP, EPSU, EPSW, FOLLOWK, Hardening, INTOUT, KMETHOD, KSTEP, linear, MATS1, MAXBIS, MAXDIV, MAXITER, NINC, NLPARM, Non, parameter, plastic, TABLES1 | Leave a comment

Improvement of the fatigue limit – Joints

Posted on September 11, 2013 by Aerospace Engineering

Improvement of joints with rows of bolts or rivets A simple double strap joint with two rows of bolts at … Continue reading →

Posted in Fatigue Analysis | Tagged Clamping, crack, cross, damage, double, expansion, fatigue, fretting, good, hole, Improvement, improvements, joints, k, limit, lug, lugs, mandrel, nosecap, pitch, plastic, rivet, rivets, rows, section, split, strap | Leave a comment

Fastener modelling in Nastran

Posted on September 7, 2013 by Aerospace Engineering

This way of modelling presented in this post is one of most used, as it is simple and sufficiently accurate. For … Continue reading →

Posted in FEM - Analysis | Tagged axial, CBUSH, Fastener, flexibility, Huth, modelling, module, NASTRAN, shear, Stiffness, Young | Leave a comment

Linear Buckling Analysis – SOL 105

Posted on August 1, 2013 by Aerospace Engineering

Theoretical Background Buckling analysis assesses the stability characteristics dictating the integrity limit of a structure. Let us start with a … Continue reading →

Posted in FEM - Analysis | Tagged 105, 6174, analysis, buckiling, buckling, FATAL, MDLPRM, SOL | Leave a comment

Miner’s Rule

Posted on July 23, 2013 by Aerospace Engineering

Miner’s rule is probably the simplest cumulative damage model. It states that if there are k different stress levels (with … Continue reading →

Posted in Fatigue Analysis | 1 Comment

Rainflow count method

Posted on July 23, 2013 by Aerospace Engineering

The rainflow ( “rain-flow counting method”) is used in the analysis of fatigue in order to reduce a spectrum of varying stress into a set of … Continue reading →

Posted in Fatigue Analysis | Tagged compressive, fatigue rainflow method, miner, peak, periodic loadings, tensile, troughs | Leave a comment

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